CN201095243Y - Compasses with caliper rule - Google Patents

Abstract

The utility model provides a pair of compasses equipped with a caliber ruler, which belongs to the stationery. The caliber ruler 1 is hinged on the locking axis of the pin of a circle center handle 3. When the compasses is undrawn, the caliber ruler 1 can be attached on the desktop, the radius of the drawn circle can be accurately measured, when the caliber ruler 1 is retracted and clung with the compasses, the occupying area is not increased, the practicability is strong, the structure is simple, the operation is convenient, and the production cost is very low.

Description

A kind of compasses with slide calliper rule

Technical field

The utility model relates to stationery, particularly a kind of compasses with slide calliper rule.

Technical background

Chinese patent publication number: CN2936783Y has the function of drawing the circle sizing on August 22nd, 2007 disclosed " a kind of band caliper compasses ", but its complex structure is difficult for using.

Summary of the invention

The purpose of this utility model is the deficiency at above-mentioned document public technology scheme, proposes a kind of compasses with slide calliper rule.It utilizes traditional compasses to be connected with slide calliper rule, and is simple and convenient, practical.

The purpose of this utility model is achieved in that a kind of compasses with slide calliper rule, comprises metal marker handle and center of circle handle, is hinged with slide calliper rule on the stitch lock shaft of described center of circle handle.

The utility model has the advantages that: utilize traditional compasses, structure is not made change, is connected with slide calliper rule at the stitch position of center of circle handle, draws back compasses, and slide calliper rule can be attached to desktop, accurately measure drawn radius of a circle.The length of slide calliper rule and width and compasses are suitable, during withdrawal and compasses be close together, do not increase area occupied, simple in structure, easy to operate, cost of manufacture is extremely low.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the schematic diagram of slide calliper rule 1 among Fig. 1

Among the figure, slide calliper rule 1, paintbrush handle 2, center of circle handle 3, locating hole 4.

The specific embodiment

Below in conjunction with the description of drawings and the specific embodiment the utility model is described in further detail.

As shown in Figure 1 and Figure 2, a kind of compasses with slide calliper rule of the utility model comprise metal marker handle 2 and center of circle handle 3, and metal marker handle 2 and center of circle handle 3 can be advised for traditional round, do not change on the structure.Difference is, is hinged with slide calliper rule on the stitch lock shaft of described center of circle handle 3.Slide calliper rule 1 in the present embodiment can be metal material, are carved with the length scale on the slide calliper rule 1, the metal marker handle 2 of the length of slide calliper rule 1 and compasses, center of circle handle 3 equal in length, and slide calliper rule 1 width is the width that metal marker handle 2 and center of circle handle 3 reclaims when merging on the compasses.Can reduce like this and add or do not increase the shared space of compasses.One end of described slide calliper rule 1 is provided with locating hole 4, and the stitch lock shaft on the center of circle handle 3 passes locating hole 4, and by locking nut locking, formation is hinged with slide calliper rule 1.During use, regulate " 0 " position at slide calliper rule 1 scale, the position of center of circle pilot pin on the handle 3 of the center of circle, paintbrush handle 2 is opened to the size that needs by the slide calliper rule reading, is the picture radius of a circle, be used to complete the back and directly regain the metal marker handle 2 and the center of circle handle 3 of compasses, regain slide calliper rule 1 simultaneously.

Claims (1)

1. the compasses with slide calliper rule comprise metal marker handle (2) and center of circle handle (3), it is characterized in that: be hinged with slide calliper rule (1) on the stitch lock shaft of described center of circle handle (3).